NP-39 HT Gold Line High Base Pillow Block Bearing (Pack of 5pcs) M5 Boston Gear’s internal gears are

Boston Gear’s internal gears are spur gears turned "inside out

Installation Manual

• Performs well in mild drilling applications with abrasive wear characteristics

THE PROFESSIONAL'S CHOICE

NP-39 HT Gold Line High Base Pillow Block Bearing (Pack of 5pcs) M5 Boston Gear’s internal gears areNP 39 HT Mounted Cast Iron Two Bolt Pillow Block Ball Bearing 52100 Bearing Steel, Black Oxided Setscrew Lock High Temperature Features Powder coated epoxy cast iron housing with extended inner ring bearings Zone hardened inner ring with 120 spacing setscrew with diamond faceted setscrews High temperature felt labyrinth seal and flinger for dry and dusty environment Increased internal clearance and high temperature grease Unique land riding retainer